3 papers
quant-ph2026
Time-optimal quantum gates with bang-bang control in multilevel systems
Valentín Reparaz, Santiago Ferreyra, María José Sánchez +2
We determine the optimal quantum manipulation protocols for implementing high-fidelity, fast single-qubit gates. We demonstrate that the time-optimal pulse sequence is a ``bang-ban…
quant-ph2026
Optimizing LZSM protocol for high-fidelity gates in open-system fluxonium
Santiago Ferreyra, Valentın Reparaz, Maria Jose Sanchez +2
Quantum gates based on resonant Rabi oscillations are inherently slow for small-frequency qubits. They are also prone to errors due to counter-rotating terms. However, when the anh…
cond-mat.mes-hall2025
Landau-Zener-Stückelberg spectroscopy of a fluxonium quantum circuit
Valentín Reparaz, María José Sánchez, Maximiliano Gatto +2
In this work, we study the time-averaged populations obtained for a fluxonium circuit under a large amplitude nonresonant periodic drive. We present numerical simulations of the ti…